kasan-memintrinsics.c [plain text]
#include <string.h>
#include <mach/boolean.h>
#include <mach/boolean.h>
#include <machine/limits.h>
#include <kern/debug.h>
#include <kasan_internal.h>
#include <memintrinsics.h>
#if MEMINTRINSICS
static bool check_intrinsics = true;
#else
static bool check_intrinsics = false;
#endif
void
__asan_bcopy(const void *src, void *dst, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(src, sz, TYPE_MEMLD);
kasan_check_range(dst, sz, TYPE_MEMSTR);
}
__nosan_bcopy(src, dst, sz);
}
void *
__asan_memmove(void *src, const void *dst, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(src, sz, TYPE_MEMLD);
kasan_check_range(dst, sz, TYPE_MEMSTR);
}
return __nosan_memmove(src, dst, sz);
}
void *
__asan_memcpy(void *dst, const void *src, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(src, sz, TYPE_MEMLD);
kasan_check_range(dst, sz, TYPE_MEMSTR);
}
return __nosan_memcpy(dst, src, sz);
}
void *
__asan_memset(void *dst, int c, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(dst, sz, TYPE_MEMSTR);
}
return __nosan_memset(dst, c, sz);
}
void
__asan_bzero(void *dst, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(dst, sz, TYPE_MEMSTR);
}
__nosan_bzero(dst, sz);
}
int
__asan_bcmp(const void *a, const void *b, size_t len)
{
if (check_intrinsics) {
kasan_check_range(a, len, TYPE_MEMLD);
kasan_check_range(b, len, TYPE_MEMLD);
}
return __nosan_bcmp(a, b, len);
}
int
__asan_memcmp(const void *a, const void *b, size_t n)
{
if (check_intrinsics) {
kasan_check_range(a, n, TYPE_MEMLD);
kasan_check_range(b, n, TYPE_MEMLD);
}
return __nosan_memcmp(a, b, n);
}
size_t
__asan_strlcpy(char *dst, const char *src, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(dst, sz, TYPE_STRINGSTR);
}
return __nosan_strlcpy(dst, src, sz);
}
size_t
__asan_strlcat(char *dst, const char *src, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(dst, sz, TYPE_STRINGSTR);
}
return __nosan_strlcat(dst, src, sz);
}
char *
__asan_strncpy(char *dst, const char *src, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(dst, sz, TYPE_STRINGSTR);
}
return __nosan_strncpy(dst, src, sz);
}
char *
__asan_strncat(char *dst, const char *src, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(dst, strlen(dst) + sz + 1, TYPE_STRINGSTR);
}
return __nosan_strncat(dst, src, sz);
}
size_t
__asan_strnlen(const char *src, size_t sz)
{
if (check_intrinsics) {
kasan_check_range(src, sz, TYPE_STRINGLD);
}
return __nosan_strnlen(src, sz);
}
size_t
__asan_strlen(const char *src)
{
size_t sz = __nosan_strlen(src);
if (check_intrinsics) {
kasan_check_range(src, sz + 1, TYPE_STRINGLD);
}
return sz;
}